NDLI: High-Speed Performance Improvements of a Two-Phase Switched Reluctance Machine Utilizing Rotor Conducting Screens

Content Provider	IEEE Xplore Digital Library
Author	Hamdy, R. Fletcher, J. E. Williams, B. W. Finney, S. J.
Copyright Year	1981
Abstract	The two-phase 4/2 switched reluctance machine is suitable for high-speed operation. It has a simple and robust construction and can be operated from power converters that have no shoot-through mode. In this paper, conducting screens are incorporated in the rotor of a prototype 400 W, 7500 rpm two-phase switched reluctance machine. The effect of the conducting screens on current response, output torque, output power, and efficiency of the machine are experimentally evaluated and explained. The conducting screens improve the torque at higher speeds, increase the output power, and improve drive efficiency. At low speeds, the conducting screens improve rate of change of inductance and, hence, torque. At high speeds, enhancements of performance are due to a lowered unaligned inductance that provides an improved initial current response. At rotor speeds greater than base speed and below a breakpoint speed, it is found that the conducting screens are detrimental to the performance of the machine. A reason for this phenomenon is given.
Starting Page	52
Ending Page	52
Page Count	1
File Size	361309
File Format	PDF
ISSN	02721724
Volume Number	22
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-07-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Reluctance machines Rotors Induction machines Torque Wounds Power generation Planar motors Wind turbines Inductance Equations motor drives Reluctance motors variable speed drives
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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